Change the shape of the active site so that the enzyme is a less effective catalyst. Change the shape of the active site so that the rate of the enzymecatalyzed reaction increases. Positive regulators Negative regulațors

Change the shape of the active site so that the enzyme is a less effective catalyst. Change the shape of the active site so that the rate of the enzymecatalyzed reaction increases. Positive regulators Negative regulațors

Chemistry for Today: General, Organic, and Biochemistry

9th Edition

ISBN:9781305960060

Author:Spencer L. Seager, Michael R. Slabaugh, Maren S. Hansen

Publisher:Spencer L. Seager, Michael R. Slabaugh, Maren S. Hansen

Chapter20: Enzymes

Section: Chapter Questions

Problem 20.61E: Describe the difference between graphs showing temperature versus reaction rate for an...

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Question

Change the shape of the active site so
that the enzyme is a less effective
catalyst.
Change the shape of the active site so
that the rate of the enzymecatalyzed
reaction increases.
Positive regulators
Negative regulațors

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Based on the graphical information in Problem 21-41 about enzymes A and B a. What is the optimum pH for enzyme B? b. What is the optimum temperature for enzyme A? c. Which enzyme has the greater activity at a pH of 7.2? d. Which enzyme has the greater activity at a temperature of 37.2C?
The site on an enzyme molecule that does the catalytic work is called the: a. binding site. b. allosteric site. c. lock. d. active site.
In the multienzyme sequence shown below, molecules of D are able to fit to the enzyme E1 and prevent the conversion of A to B. What is this action of E called? AE1BE2CE3D a. effector inhibition b. allosteric inhibition c. feedback inhibition d. competitive inhibition by nonproduct
Some enzymes consist of protein plus another component. Which of the terms cofactor or coenzyme correctly describes each of the following nonprotein components? a. an inorganic ion b. a nonspecific component c. an organic material d. nicotinic acid.
Explain how the pasteurization of milk utilizes one of the factors that influence enzyme activity.
Describe the difference between graphs showing temperature versus reaction rate for an enzyme-catalyzed reaction and an uncatalyzed reaction.
The human body has an average pH of about 7 and a temperature of about 37C. Use graphs to illustrate enzyme activity in the human body as a function of the following: a. Substrate concentration b. Enzyme concentration c. pH include pH optimum value d. Temperature include temperature optimum value
The process by which an enzyme acts on the substrate can be described by the: a. lock-and-key model. b. enzyme-and-substrate model. c. enzyme folding model. d. catalytic model.